[ns] nortel diffserv!!!

[Kaleelazhicathu R R Kumar <kaleelaz@comp.nus.edu.sg>]

hi all,
 i am getting the following error when doing a "make" to incorporate the
Nortel diff serv in ns2.1b6.
    dsPolicy.cc: In method `int Policy::mark(class Packet *)':
dsPolicy.cc:532: no match for `ns_addr_tag & >> int' dsPolicy.cc:532: 
no match for `ns_addr_tag & >> int'
make: *** [dsPolicy.o] Error 1  

  has anyone come across this error earlier???please let me know... 

thanks
Renjish.